org.jboss.as.connector.util.Injection.java:159

protected Method findMethod(Class<?> clz, String methodName, String propertyType) {
while (!clz.equals(Object.class)) {
List<Method> hits = null;
Method[] methods = clz.getDeclaredMethods();
for (int i = 0; i < methods.length; i++) {
Method method = methods[i];
if (methodName.equals(method.getName()) && method.getParameterTypes().length == 1) {
if (propertyType == null || propertyType.equals(method.getParameterTypes()[0].getName())) {

the above is not taking primitives into account.
Example, the IBM IMS connector ims1132.rar has:

<config-property>
<config-property-name>enableHASupport</config-property-name>
<config-property-type>java.lang.Boolean</config-property-type>
<config-property-value>true</config-property-value>
</config-property>

and the method:

public void setEnableHASupport(boolean isHAEnabled)

Our "FindMethod" will find this method but will fail to select it as it compares "java.lang.Boolean" with "boolean"